FIELD: measurement equipment.
SUBSTANCE: after investigated and total signals are adjusted to a common time scale, which leads to compression of their spectra near frequencies of individual discrete spectrum components, band-pass filtering of the mixture signal is performed in frequency band formed with discrete spectrum component. Then, inverse conversion of time scale of the filtered signal is performed. At that, time and spectrum characteristics of the extracted signal are recovered, and influence of interference is suppressed.
EFFECT: providing extraction of useful signal from interference in common frequency band when it is impossible to use band-pass filtering.
8 dwg
